Highline SeaTac Botanical Garden

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SeaTac, WA
Highline SeaTac Botanical Garden

Connecting the community to nature through a diverse and beautiful collection of historical gardens.

HSBG was created in 2000 using historically significant private gardens saved from demolition by the expansion of the SeaTac Int'l Airport's construction of their 3rd runway. Between these two full-featured collections lie an eye-catching series of beds sponsored by local garden enthusiasts, including the Puget Sound Daylily Club, the King County Iris Society, and the Seattle Rose Society.

05/29/2026

Our annual plant sale is tomorrow, Saturday, May 30, 11am-2pm at Highline SeaTac Botanical Garden. Stop by before or after visiting Shark Garden during the Burien Garden Tour to peruse our selection of plants from our Partner Gardens, King County Iris Society, Puget Sound Daylily Society, and Puget Sound Fuchsia Society, as well as Wanderlust Nursery, and plants donated by Park Side Garden Club.

Enjoy live music in the Celebration Rose Garden performed by Northwest Symphony Orchestra Brass Quintet, buy kelp made pots from Ocean Made, and discuss all your plant questions with a trained horticulturalist. We hope to see you there!

Please note: Some vendors may only accept cash or checks.

📆 Date: Saturday, May 30, 2026
⏰ Time: Early Bird Members Only 9am–10am; General Public 11am–2pm
📍Location: Highline SeaTac Botanical Garden | 13735 24th Avenue S., SeaTac 98168
✨Cost: Free to attend

05/25/2026

Highline SeaTac Botanical Garden is bursting with blooms this week! May is always so full of life here and a visit is well worth the trip. You'll see a rich variety of roses, peonies, iris, rhododendron, and azaleas blooming this month. And be sure to stop by on May 30 between 11am and 2pm for our annual plant sale where you can purchase plants that our volunteers cultivated directly from the Garden.

Learn more on our website: https://highlinegarden.org/event/annual-plant-sale/

05/14/2026

Our annual plant sale is just two weeks away. Join us on Saturday, May 30 at Highline SeaTac Botanical Garden where members of our Partner Gardens, King County Iris Society, Puget Sound Daylily Club, Puget Sound Fuchsia Society, and Wanderlust Nursery will have plants for sale. Enjoy live music in the Celebration Rose Garden performed by Northwest Symphony Orchestra Brass Quintet and discuss all your plant questions with a trained horticulturalist. We hope to see you there!

Please note: Some vendors may only accept cash or checks.

📆 Date: Saturday, May 30, 2026
⏰ Time: Early Bird Members Only 9am–10am; General Public 11am–2pm
📍Location: Highline SeaTac Botanical Garden | 13735 24th Avenue S., SeaTac 98168
✨Cost: Free to attend

05/08/2026

Mother's Day is just around the corner and now is the perfect time to walk through the Garden with Mom. Rhododendrons are at their peak, iris and roses are beginning to bloom, and the lilacs are bursting with scent. The Japanese maples throughout the Seike Garden are shrouded in delicately textured leaves and the sound of water and birdsong fills the air.

Pictured, in order:
Rhododendron luteum
Rhododendron ferrugineum
Crataegus monogyna (common hawthorn)
Seike Japanese Garden
Laburnum x Watereri
Cassia Fistula Tree (golden shower tree)
Hybird Iris King County Iris Society

05/05/2026

It’s iris time at the Highline SeaTac Botanical Garden and King County Iris Society will be hosting an open garden at their iris beds on May 13, from 6 pm - 7pm. Iris Society members will be there to provide information and answer all of your iris questions in advance of our Annual Plant Sale on May 30.

This event is complimentary and open to the public.

King County Iris Society

04/30/2026

Sign up for our digital newsletter today to stay involved with current happenings at Highline SeaTac Botanical Garden. If you've tried signing up in the past and never received a newsletter, we apologize! We've fixed a few issues on our end and have a new newsletter form on our website.

Visit: https://highlinegarden.org/ and scroll to the form at the bottom of the page to be added to our mailing list. Seasonal newsletters share more about the Garden, our community, and current and upcoming events & programs.

04/28/2026

Attention all members of Highline Botanical Garden Foundation: the spring issue of "Cuttings" is in the mail! Your newsletter includes articles from our Board President, Executive Director, and Volunteer Coordinator, as well as event calendar highlights, collection garden and community partner updates, and a membership renewal form. We hope you enjoy the new look...🌸

Membership benefits include:
🌿15% discount on plants at our annual plant sales, including early bird entry time (9am-10am_
🌿10% discounts at partner nurseries: Kent East Hill Nursery, Wanderlust Nursery, Zenith Holland, Restoring Eden
🌿Annual garden tour for up to 10 people
🌿First priority to complimentary gardening workshops
✨And, of course, the tri-annual "Cuttings" newsletter

If you're not a member yet, join today to receive benefits to our Annual Community Plant Sale on May 30 on our website:
https://highlinegarden.org/support/membership/

04/27/2026

Join us on Saturday, May 30 at Highline SeaTac Botanical Garden for our annual community plant sale! This year our team successfully propagated many beautiful plants right from the Garden. Here’s a look at a few of the varieties for sale, with many more offerings to come:

• Chrysanthemums
• Pacific Coast Iris
• Hellebores
• Canterbury Bells
• Sarcococca
• Hydrangeas
• Lilies
• Peonies
• Hostas

Members of our Partner Gardens, King County Iris Society, , Puget Sound Fuchsia Society and Wanderlust Nursery will also be selling their plants and we’ll have live music in the Celebration Rose Garden performed by Northwest Symphony Orchestra Brass Quintet. Partner City Fruit Seattle
will share more about the orchard and their work to support access to fruit throughout the community.

Talk with a trained horticulturalist and purchase kelp-based pots from Ocean Made. We hope to see you there!

Please note: Some vendors may only accept cash or checks.

📆 Date: Saturday, May 30, 2026
⏰ Time: Early Bird Member’s Only 9am–10am; General Public 11am–2pm
📍Location: Highline SeaTac Botanical Garden | 13735 24th Avenue S., SeaTac
✨Cost: Free to attend

04/24/2026

The Iris are starting to bloom at Highline SeaTac Botanical Garden. John and Linda of the King County Iris Society are carefully tending the beds in preparation for the height of bloom season, mid April through June. Visit today and during our Annual Community Plant Sale on May 30 to learn more and purchase one of these beautiful plants for your home garden.

Address

13735 24th Avenue S
Seatac, WA
98168

Telephone

(206) 391-4003

Website

http://www.highlinegarden.org/

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